Immersion brewer
Primula Burke Deluxe Cold Brew Maker: ratio and recipe
100g coffee950mL water
That is an everyday batch at 1:9.5, steeped 18–22 hours in the fridge and poured straight over ice. Holds 1,183 mL of water and takes up to 100 g of coffee.
The maker’s own recipe
1:13.985 g coffee1,183 mL watersteep 24 h
This is the recipe Primula publishes for this brewer, and it is what Cold Brew Studio opens with when you pick it. It makes about 4¼ cups, best straight over ice.
How the maker does it
Primula's official instructions (by volume, not weight): place coarsely ground coffee in the removable fine-mesh brew filter, insert filter in the carafe, slowly pour 2 cups of water over the coffee to dampen it, then slowly fill the remainder of the carafe with water to cover the grounds or up to the top of the brew filter's viewing windows — the carafe/filter combo is 'designed to hold 40 oz. water and 16 tbsp. of coffee.' Stir grounds until saturated, tighten the lid, and refrigerate 24 hours ('for ultimate flavor extraction, stir grounds during the brewing process'). Unscrew the filter bottom to discard grounds. No specific dilution ratio is given for serving — instructions just say add creamer/cream substitute, sugar, and ice to taste. Stays fresh in the fridge up to 14 days.
Source: primulaproducts.com
The recipe, by strength
Each one fills this brewer as far as it honestly goes. Numbers are for a light roast steeping in the fridge.
| Strength | Ratio | Coffee | Water | Steep | Makes | Drink it |
|---|---|---|---|---|---|---|
| Everyday | 1:9.5 | 100 g | 950 mL | 18–22 h | about 3¼ cups | straight over ice |
| Strong | 1:7.5 | 100 g | 750 mL | 18–22 h | about 2¼ cups | with a splash of milk |
| Jet fuel | 1:5.3 | 100 g | 530 mL | 18–22 h | about 2 cups | cut with a little water or milk |
| Concentrate | 1:4.5 | 100 g | 450 mL | 18–22 h | about 2 cups | mixed 1:1 with water or milk |
If your beans are darker
Darker roasts give up their flavor faster, so they brew at a slightly wider ratio and steep for less time.
| Roast | Ratio | Coffee | Water | Steep in the fridge |
|---|---|---|---|---|
| Light | 1:9.5 | 100 g | 950 mL | 18–22 h |
| Medium | 1:10 | 100 g | 1,000 mL | 14–18 h |
| Dark | 1:10.5 | 100 g | 1,050 mL | 10–14 h |
Everyday strength shown.
How it goes
- Grounds in the basket.
- Water over, slowly.
- Stir once.
- Lid on, into the fridge.
Grind coarse, about the size of coarse sea salt. Find the number for your grinder.
Good to know
Uses a fine mesh filter (not felt or paper) with a removable/screw-off bottom, so grind coarseness matters more here to limit fine sediment passing through into the carafe. The official recipe, converted to weight, is noticeably weaker (about 1:14) than Toddy's or OXO's felt/disc-filtered concentrates (about 1:4-1:6) and comes with no set dilution ratio — it's designed to be poured over ice and doctored with cream/sugar closer to full strength rather than diluted as a concentrate.
This brewer takes about 100 g of coffee at most. Stronger recipes can’t add more grounds, so they use less water instead. That is why every strength comes in under the full 1,183 mL.
Let the app keep track.
Cold Brew Studio sizes every batch to your Primula Burke Deluxe Cold Brew Maker, tells you when it is ready, and adjusts the recipe when you rate how it tasted.
Free on iPhone and the web. No account needed.
Quick answers
- How much coffee do I use in the Primula Burke Deluxe Cold Brew Maker?
- For an everyday strength, 100 g of coffee to 950 mL of water, a 1:9.5 ratio. For a concentrate, 100 g to 450 mL.
- How long do I steep cold brew in the Primula Burke Deluxe Cold Brew Maker?
- 18–22 hours in the fridge for a light roast, 14–18 for medium and 10–14 for dark. On the counter, 12–14, 9–12 and 7–9 hours.
- What ratio does the maker recommend for the Primula Burke Deluxe Cold Brew Maker?
- 1:13.9, which is 85 g of coffee to 1,183 mL of water, steeped 24 hours.