Read the actual source amounts
No source-based reason is established to transfer it. Origin’s reviewed page suggests 40 mlconcentrate with 140 mlwater,milk or another non-dairy alternative. Assembly’s page gives a 1:2 water-ratio statement. Those are distinct maker instructions,not alternative descriptions of one shared recipe.
Keep a ratio from another maker separate
For Tesco,the visible UK highlights mention 100 mlconcentrate and cold water,but the complete follow-up preparation panel could not be reliably read. We do not fill its added-water amount from Origin,Assembly or the Irish-market page. The missing current UK field stays unknown.
Do not substitute missing fields
The site does not prescribe a desired strength or convert the source suggestions into an individual caffeine or nutrition recommendation. Adding milk or another ingredient also introduces its own ingredient and nutritional questions that are not answered by the black-concentrate label.
Check the supplied version
Read the current received product instructions and ask the maker to clarify an ambiguous ratio or version difference. The source finder reports the exact known preparation scope and the unverified fields. No drink was mixed or tasted to decide a preferred method here.
Apply the field to a purchase
If a source’s ratio does not clearly identify which part is concentrate and which is added liquid,ask the maker. Do not turn an ambiguous pair of numbers into a universal preparation calculator.
Sources & scope
Checked November 5, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or retailer instructions. Current received labels and independent food/nutrition/content/commerce review remain pending.
Tesco UK Finest Unsweetened Cold Brew500ml product320664024 ↗