Olive Oil Marinade: The Base Ratio and Variations for Steak, Chicken and Fish
A good olive oil marinade is three things in proportion: olive oil to carry flavour and help the food brown, a little acid for brightness, and salt to season the meat or fish below the surface, with garlic, herbs and spices on top. Get the proportions right and you can stop looking up a new recipe every time; change the acid and the aromatics and the same base works for steak, chicken, salmon, prawns and vegetables. Below is our own base ratio, written for this article in metric and US measures and tied to the weight of the food you are marinating, followed by marinating times for each protein, the food-safety rules from the USDA and the UK Food Standards Agency, six alcohol-free variations, and which olive oil is worth using.
For our own oil, see our Cold-Pressed Single-Estate Extra Virgin Olive Oil - Marrakech (500ml).
The Short Answer
- Our base olive oil marinade is 3 tablespoons (45ml) of extra virgin olive oil, 1 tablespoon (15ml) of acid such as lemon juice and 1 level teaspoon of fine salt for every 500g (1 lb 2 oz) of food, plus garlic, herbs and pepper. We call it 3-1-1 per 500g.
- That makes about 75ml (5 tablespoons, roughly ⅓ cup) of marinade, enough to coat 500g of meat, fish or vegetables in a bag or a snug dish. Double everything for 1kg (2¼ lb).
- Adjust the acid to the protein: keep the full tablespoon for steak and chicken, halve it for fish and prawns, and use zest rather than juice for anything that will sit for more than a few hours.
- Marinating times: fish and prawns 15–30 minutes, chicken 30 minutes to 24 hours, steak 30 minutes to 24 hours, vegetables 15 minutes to 2 hours. The USDA's outer limits in the fridge are 2 days for chicken and 5 days for beef.
- Always marinate in the fridge, covered. The USDA says to discard uncooked leftover marinade, or bring it to a full boil before using it on cooked food; the simpler habit is to set some aside before any raw food touches it.
- A fresh, everyday extra virgin olive oil is the best olive oil for a marinade. Keep your finest bottle for a drizzle over the cooked food, where its flavour is tasted unheated.
The Base Olive Oil Marinade Ratio
The proportions most cooks start from are three parts oil to one part acid, and that balance is a sensible one: enough acid to taste, not so much that it toughens or softens the surface of the meat. What most marinade recipes leave out is how much to make for the amount of food in front of you, and how much salt. Ours ties both to weight, so it scales without guesswork.
| Per 500g (1 lb 2 oz) of food | Metric | US | What it does |
|---|---|---|---|
| Extra virgin olive oil | 45ml | 3 tbsp | Carries the fat-soluble flavours of garlic, herbs and spices; helps browning; stops sticking |
| Acid (lemon or lime juice, cider vinegar, pomegranate molasses) | 15ml | 1 tbsp | Brightness and balance |
| Fine salt | 1 level tsp (about 6g) | 1 level tsp | Seasons below the surface and helps the meat hold its juices |
| Garlic cloves, finely grated | 2 | 2 | Flavour |
| Dried herbs, or chopped fresh herbs | 1 tsp dried, or 1 tbsp fresh | 1 tsp dried, or 1 tbsp fresh | Flavour |
| Freshly ground black pepper | ½ tsp | ½ tsp | Flavour |
| Honey (optional) | 1 tsp | 1 tsp | Rounds out sharp acids and helps colour; burns if the heat is fierce |
The three numbers to remember: 3 tablespoons of oil, 1 tablespoon of acid, 1 teaspoon of salt, per 500g. For 1kg (2¼ lb), double everything; for 250g (9 oz), such as two salmon fillets, halve it.
About the salt: 1 level teaspoon of fine salt is roughly 1% of the weight of 500g of food, which seasons it properly without needing more at the table. Coarse kosher or flaky salt has bigger crystals, so use about 1½ teaspoons of it to get the same amount. If your spice mix already contains salt, reduce it.
Why oil to acid at 3 to 1, and not 1 to 1? A marinade is not a salad dressing. Our lemon olive oil dressing is balanced to be eaten raw on leaves; a marinade sits on raw protein for hours, and the USDA's Food Safety and Inspection Service notes that too much vinegar or hot sauce in a marinade can make poultry stringy and tough. Keeping the acid at a quarter of the liquid gives flavour without that damage.
How to make the base marinade
- Put the salt, grated garlic, herbs and pepper in a bowl or jar and add the acid. Stir until the salt has mostly dissolved; salt dissolves in the acid, not in the oil.
- Add the olive oil and the honey, if using, and whisk or shake hard. The mixture will separate again as it stands, which does not matter: it only needs to coat the food.
- If you want some to spoon over the cooked food, pour that portion into a separate small bowl now, cover it and keep it in the fridge. This is your sauce; the rest goes on the raw food.
How to Marinate Meat and Fish, Step by Step
- Pat the food dry. Dry surfaces take marinade evenly and brown better later. There is no need to rinse raw meat or chicken first: the USDA advises against washing raw poultry because splashing spreads bacteria around the kitchen, and says washing raw beef is unnecessary because cooking destroys surface bacteria.
- Choose the container. The USDA lists food-grade plastic bags, food-grade plastic, stainless steel and glass containers for marinating. A zip-top bag uses the least marinade because you can press the air out and the food stays coated; a snug glass dish works too. Avoid uncoated aluminium and cast iron with acidic marinades, which can react with the acid and taste metallic.
- Coat and cover. Add the food, turn it until every surface is coated, seal or cover it, and put it on the bottom shelf of the fridge, where any drips cannot reach ready-to-eat food.
- Marinate in the fridge, never on the worktop. Turn the bag or the pieces once halfway through. Keep to the times in the table below.
- Lift out and wipe off the excess. Let the marinade drip off and wipe away surface garlic and herb pieces with kitchen paper. Excess oil causes flare-ups on a grill and smoke in a pan; loose garlic burns before the food is cooked.
- Cook to a safe temperature (see the food-safety section below), and wash your hands and anything the raw food touched in hot, soapy water.
- Deal with the used marinade. Throw it away, or, if you want to use it as a sauce, bring it to a full rolling boil first. The reserved, untouched portion from the step above needs no boiling.
How Long to Marinate: Steak, Chicken, Fish and Vegetables
Marinating longer does not make food taste proportionally stronger. Most of a marinade's flavour stays at or near the surface, salt is the ingredient that travels furthest into the meat, and acid keeps working on the outside for as long as it is there. So the useful window is shorter than many people think, and it is shortest for fish.
| Food | Acid per 500g | Minimum | Best range | Our upper limit | USDA fridge limit |
|---|---|---|---|---|---|
| Steak (sirloin, rump, flank, skirt, rib-eye) | 1 tbsp (15ml) | 30 min | 2–12 hours | 24 hours | Beef: up to 5 days |
| Lamb chops, cutlets and leg steaks | 1 tbsp (15ml) | 30 min | 2–12 hours | 24 hours | Not stated on the pages we read; we treat lamb like beef |
| Chicken breasts and thighs, boneless | 1 tbsp (15ml) | 30 min | 2–8 hours | 24 hours | Poultry: up to 2 days |
| Chicken, bone-in pieces and wings | 1 tbsp (15ml) | 1 hour | 4–12 hours | 24 hours | Poultry: up to 2 days |
| Salmon, trout and other oily fish | 1½ tsp (7.5ml) | 15 min | 15–30 min | 1 hour | Not covered by FSIS |
| White fish fillets (cod, haddock, sea bass) | 1½ tsp (7.5ml) | 10 min | 15–20 min | 30 min | Not covered by FSIS |
| Prawns (shrimp) | zest, or 1½ tsp juice | 10 min | 15–30 min | 1 hour with zest, 30 min with juice | Not covered by FSIS |
| Vegetables, mushrooms and halloumi | 1 tbsp (15ml) | 15 min | 30 min–2 hours | 4 hours | Not applicable |
Our upper limits are about texture, not safety: they are where we find lemon or lime juice starts to make the surface chalky or soft. If you want to marinate further ahead, swap the juice for grated zest and add the juice just before cooking. The USDA limits are the outer bounds for raw meat held in a marinade in the fridge.
Fish is the exception to "longer is better". Acid firms and whitens the flesh of raw fish without any heat, which is how ceviche is made. That is pleasant in a ceviche and unwelcome on a salmon fillet you are about to grill, which is why fish gets half the acid and minutes rather than hours.
Marinade Food Safety: Fridge, Used Marinade and Safe Temperatures
Raw meat, poultry and fish can carry bacteria, and a marinade that has been sitting on them carries those bacteria too. The rules are short and worth following every time.
| What the guidance says | Source | |
|---|---|---|
| Where to marinate | In the refrigerator, covered | USDA FSIS |
| How long, at most | Chicken up to 2 days; beef up to 5 days | USDA FSIS |
| Leftover marinade from raw food | Discard uncooked leftover marinade; bring it to a full boil before brushing it on cooked chicken or beef; do not use marinade from raw poultry as a sauce unless it has been boiled first | USDA FSIS |
| Containers | Food-grade plastic bags, food-grade plastic, stainless steel or glass | USDA FSIS |
| Steaks and lamb chops | 145°F (62.8°C) with at least 3 minutes' rest (USDA); whole cuts can be served pink in the middle if the outside is seared and has changed colour (FSA) | USDA FSIS; UK FSA |
| Chicken | 165°F (73.9°C) (USDA); 70°C for 2 minutes or an equivalent such as 75°C for 30 seconds, steaming hot throughout with no pink (FSA) | USDA FSIS; UK FSA |
| Fish and shellfish | 145°F (62.8°C) (USDA); fish opaque and flaking easily with a fork, prawns firm and opaque (FSA) | USDA FSIS; UK FSA |
Sources: USDA Food Safety and Inspection Service, "Beef from Farm to Table", "Chicken from Farm to Table", "Poultry: Basting, Brining, and Marinating" and the Safe Minimum Internal Temperature Chart; Food Standards Agency, "Cooking your food". All read 13 October 2026.
Basting during cooking: if you brush marinade on while the food cooks, use the reserved, untouched portion, or boil the used marinade first. Do not brush raw-meat marinade on in the last minutes of cooking, when it will not get hot enough for long enough.
Pierced or injected meat: the FSA's advice that steaks can be served pink applies to whole cuts, because bacteria sit only on the outside. If you pierce a steak with a fork or an injector to push marinade in, surface bacteria can be carried inside, so we would cook it through rather than serve it rare.
The reserved portion: marinade that has never touched raw food is a sauce like any other, but fresh garlic sitting in oil needs care. Keep it covered in the fridge and use it within a few days; our guide to garlic-infused olive oil explains why garlic in oil should never be kept at room temperature.
Olive Oil Marinade Variations for Steak, Chicken and Fish
Each variation is for 500g (1 lb 2 oz) of food and keeps the base proportions: 45ml (3 tbsp) of extra virgin olive oil and 1 level teaspoon of fine salt, with the acid and aromatics changed. All six are alcohol-free: the acids are citrus juice or pomegranate molasses.
1. Steak: garlic, rosemary and pomegranate molasses
Olive oil, 1 tablespoon (15ml) of pomegranate molasses as the acid, 3 grated garlic cloves, 2 teaspoons of finely chopped fresh rosemary (or 1 teaspoon dried), 1 teaspoon of coarsely cracked black pepper and ½ teaspoon of ground cumin. Pomegranate molasses is sour and slightly sweet, so it gives a dark, glossy crust; it can catch on a very hot grill, so wipe the steak well before cooking. Marinate 2–12 hours, then sear hard and rest.
2. Chicken: lemon, garlic and smoked paprika
Olive oil, 1 tablespoon (15ml) of lemon juice and the zest of the lemon, 3 grated garlic cloves, 1½ teaspoons of smoked paprika, 1 teaspoon of dried oregano and ½ teaspoon of black pepper. Best on boneless thighs, 2–8 hours. For an oven version, our olive oil baked chicken builds a full method, with oven times by cut, around a lemon, garlic and oregano marinade.
3. Chicken thighs: warm spices and lime
Olive oil, 1 tablespoon (15ml) of lime juice, 1 teaspoon each of ground cumin and ground coriander, ½ teaspoon each of ground turmeric, ground ginger and ground cinnamon, ¼ teaspoon of cayenne pepper, 2 grated garlic cloves and 1 teaspoon of honey. Marinate boneless thighs 4–12 hours, then grill, griddle or roast them and slice them for wraps or rice.
4. Salmon or trout: lemon, dill and garlic
Olive oil, 1½ teaspoons (7.5ml) of lemon juice plus the zest of half a lemon, 1 tablespoon of chopped fresh dill (or 1 teaspoon dried), 1 grated garlic clove, ½ teaspoon of black pepper and ¾ teaspoon of fine salt rather than a full teaspoon, because fish fillets are thinner. Marinate 15–30 minutes, then bake, grill or pan-fry skin side down.
5. Fish or prawns: chermoula-style
Chermoula is the Moroccan herb marinade for fish, and every household makes it differently; this is ours. Blend or finely chop a small handful each of fresh coriander (cilantro) and flat-leaf parsley (about 15g / ½ oz each) with the olive oil, 1½ teaspoons (7.5ml) of lemon juice, 2 garlic cloves, 1 teaspoon each of ground cumin and sweet paprika, a pinch of chilli flakes and ¾ teaspoon of fine salt. Coat white fish or prawns for 15–30 minutes. Set a spoonful aside first to serve alongside.
6. Prawns (shrimp): garlic, chilli and lemon zest
Olive oil, the finely grated zest of 1 lemon (no juice), 3 grated garlic cloves, ½ teaspoon of chilli flakes, 1 teaspoon of sweet paprika and ¾ teaspoon of fine salt. Because there is no juice, the prawns can sit for up to an hour without turning soft; squeeze the lemon over them once they are cooked. They need only 2–3 minutes a side, until firm and opaque.
For vegetables: the base marinade with lemon and dried oregano, or the chermoula, suits courgettes (zucchini), peppers, aubergine (eggplant), mushrooms, red onion and halloumi. Thirty minutes is plenty.
Why Olive Oil Belongs in a Marinade
The oil in a marinade is not filler. Many of the flavour compounds in garlic, herbs and spices dissolve far better in fat than in water or acid, so the oil gathers them up and spreads them evenly over the surface of the food. In the pan or on the grill, the thin film of oil conducts heat into the surface, helps it brown, and stops lean meat and fish from sticking.
- Oil carries flavour and browning. A coat is enough. More oil does not mean more flavour; it drips, smokes and flares.
- Salt does the deep seasoning. It is the part of the marinade that moves furthest into the meat, which is why a well-salted marinade tastes seasoned all the way through and an unsalted one tastes of its surface.
- Acid is for brightness, in moderation. It works on the outside of the food, and too much of it for too long toughens poultry or turns fish chalky.
The objection: "Extra virgin olive oil is wasted in a marinade"
Not if you match the oil to the job. Heat does soften the most delicate aromas of a fine oil, so a sound, fresh, everyday extra virgin olive oil is the sensible choice for the marinade itself. But a stale or rancid oil, of any grade, tastes stale on the finished food, so the oil still needs to be fresh. Keep your best bottle for a spoonful over the cooked steak, chicken or fish, where it is tasted as it is.
The objection: "Extra virgin olive oil burns on the grill"
Much less than its reputation suggests. Food coming off a marinade is wet and cold, and the thin film of oil on it stays well below the temperature of the grill or pan while that moisture cooks off. In a 2018 laboratory heating study of ten common cooking oils, published in Acta Scientific Nutritional Health, De Alzaa, Guillaume and Ravetti found that extra virgin olive oil produced the lowest level of polar compounds, the standard measure of oil breakdown, and that smoke point did not predict how well an oil held up. It is a single study, its authors work in olive oil testing, and its conditions were harsher than a grill, so read it as reassurance rather than proof. Our articles on grilling with olive oil and olive oil at high heat go into the evidence and its limits.
The objection: "The marinade goes solid in the fridge"
Extra virgin olive oil turns cloudy and thick when it is cold, and may partly set. It is harmless and does not stop the marinade working. Give the bag a squeeze, or leave the food out for 10 minutes before cooking while you heat the pan.
Which olive oil to use
| Oil | In a marinade | Best for |
|---|---|---|
| Fresh, medium-fruity extra virgin | Rounds out garlic, herbs and citrus; browns well | Most marinades, and the reserved sauce portion |
| Robust, peppery extra virgin | Holds its own against rosemary, cumin and pomegranate molasses | Steak, lamb and chermoula; finishing grilled meat |
| Refined, "pure" or "light" olive oil | Same coating and browning, little flavour | When you want the spices to speak alone |
| Old or rancid oil of any grade | Stale, waxy notes that cooking does not hide | Nothing; replace the bottle |
Our guide to the types of olive oil for cooking explains the grades, and our guide to choosing a quality olive oil covers what to look for on the label, including a harvest or best-before date, dark glass and a named origin. For how olive oil and vinegar behave together in dressings, and why they separate, see our article on olive oil and balsamic vinegar.
Troubleshooting Marinated Food
The surface is mushy, chalky or pale
Too much acid, for too long. Keep to 1 tablespoon of acid per 500g (half that for fish), switch to zest for long marinades, and watch the times.
It burnt before it was cooked through
Garlic, honey and pomegranate molasses scorch at high heat. Wipe the surface before cooking, use medium rather than fierce heat for sweet marinades, and brush any honey on in the last few minutes instead.
It tastes of nothing inside
Usually the salt was left out or cut back. The salt is what seasons the inside; the herbs and spices mostly flavour the crust. Spoon the reserved portion over the cooked food for more flavour.
The grill flared up
Too much oil dripping onto the coals. Let the food drip, blot it, and brush the grill bars rather than the food with any extra oil.
Why Sidr & Stone
In a marinade, olive oil does two jobs: it carries the garlic, herbs and spices on to the food, and a spoonful of it over the finished dish is the olive oil flavour you notice most. The second job is where the quality of the oil shows. Sidr & Stone's extra virgin olive oil comes from one place, our own farm on the plains outside Marrakech, and we control every step from tree to bottle.
- Single-estate: Sidr & Stone's olive oil comes from our own family-owned farm near Marrakech, Morocco, with no blending across origins.
- Rain-fed: the trees are not irrigated; they take what the season gives.
- Organically grown: no synthetic fertilisers, pesticides or herbicides are used (not yet certified; certification is in progress).
- Single harvest: each batch is small and limited, picked when the fruit is ready; once it is gone, it is gone until the next harvest.
- Cold-pressed within hours of harvest: to protect flavour, aroma and polyphenols.
- Unfiltered extra virgin: minimally processed, so a little natural sediment at the bottom of the bottle is normal.
- 100% natural: a single ingredient, olive oil, with nothing added.
- Dark glass with a gold label: 500ml bottles that protect the oil from light.
- 10% of profits to charity: a Sidr & Stone commitment across every product.
- Fulfilment in the UK, EU and US.
We will not tell you ours is the best olive oil for a marinade; the chermoula on your table can judge that. What we will say is that it is single-estate Moroccan, rain-fed, organically grown and cold-pressed within hours of harvest, and that the product page carries the details of the current batch, so you can check its freshness for yourself.
Frequently Asked Questions
What is the ratio for an olive oil marinade?
Three parts olive oil to one part acid is the usual starting point. Our base is 3 tablespoons (45ml) of extra virgin olive oil, 1 tablespoon (15ml) of acid and 1 level teaspoon of fine salt per 500g (1 lb 2 oz) of food, plus garlic, herbs and pepper. Use half the acid for fish.
How long should you marinate chicken in olive oil?
From 30 minutes to 24 hours in the fridge, with 2–8 hours best for boneless pieces. The USDA allows chicken up to 2 days in a marinade in the refrigerator, but citrus-heavy marinades start to soften the surface after a day.
Can you reuse a marinade after raw meat?
Not as it is. The USDA says to discard uncooked leftover marinade, or bring it to a full boil before brushing it on cooked meat or using it as a sauce. It is easier to set some marinade aside before any raw food touches it.
What is the best olive oil for a marinade?
A fresh, everyday extra virgin olive oil. It carries the flavours and browns well; a robust, peppery one suits steak and lamb. Save your finest oil for drizzling over the cooked food, and replace any oil that smells stale or waxy.
Does an olive oil marinade tenderise steak?
Only a little. A marinade flavours the surface and the salt seasons the meat, but acid does not make a tough cut tender. Choose a suitable cut, cook it to your liking, rest it, and slice it thinly across the grain.
Is Sidr & Stone's olive oil good for marinades?
Yes. It is a single-estate, cold-pressed, unfiltered extra virgin olive oil, so it works in the marinade and, especially, in the reserved portion spooned over the cooked food, where its flavour is tasted unheated.
Where can I buy single-estate extra virgin olive oil for cooking?
Our Cold-Pressed Single-Estate Extra Virgin Olive Oil - Marrakech (500ml) is available to pre-order directly from the Sidr & Stone website, with fulfilment in the UK, EU and US.
Is olive oil a medicine?
No. Olive oil is a food, not a medicine. It has a long traditional history — including being honoured in the Prophetic Sunnah — and a substantial body of modern research, particularly around polyphenols, cardiovascular health, and the Mediterranean diet pattern. It can be a worthwhile part of a healthy routine, but it does not cure diseases and is not a substitute for medical care. Be cautious of any olive oil marketed with specific disease-cure claims.
Final Thoughts
An olive oil marinade does not need a new recipe for every meal. Remember 3-1-1 per 500g: 3 tablespoons of extra virgin olive oil, 1 tablespoon of acid and 1 teaspoon of salt, then change the acid and aromatics to suit the steak, chicken, fish or vegetables in front of you. Give fish minutes and meat hours, keep everything in the fridge, and set a little aside before the raw food goes in.
The rest is the oil itself: fresh enough to taste clean on the finished food, with a spoonful of your best kept back for the end. Our Cold-Pressed Single-Estate Extra Virgin Olive Oil - Marrakech (500ml), single-estate, rain-fed and cold-pressed within hours of harvest, is available to pre-order now as a limited single-harvest batch, with fulfilment in the UK, EU and US.
Our extra virgin olive oil is grown organically on our own single-estate farm on the plains outside Marrakech: we control every step from tree to bottle, and no synthetic pesticides, herbicides or fertilisers are used. It is not yet certified organic — certification is in progress, and we will publish it as soon as it comes through.
Disclaimer: This article shares home-cooking methods and general food-safety information at the time of writing; ingredients, cuts and individual dietary needs vary, the heating-study findings quoted come from a single laboratory study, and official food-safety guidance may change, so readers should check current USDA, FSA or local guidance. Always marinate in the fridge, cook meat, poultry and fish to a safe temperature, and keep raw food away from ready-to-eat food. Olive oil is a food, not a medicine, and is not a substitute for medical treatment of any condition. For any health concern, consult a qualified medical professional.