Straight answers.

An instant coffee drink with whey protein, creatine, vitamins and minerals. One 30g scoop in hot or cold water. It isn't on sale yet: we're building it in public, and the founding list hears first.

We don't know yet, and we'd rather say so than guess. There are no samples. When they arrive, they go into a blind test against the protein coffees we can buy in the UK, and we publish the scores. If it doesn't pass, it doesn't ship.

The target per 30g scoop: about 4g of real instant coffee with about 120mg of caffeine, 15g of protein from whey, 3g of creatine monohydrate, 10µg of vitamin D3, and at least 15% of the NRV each of vitamin B6, vitamin B12, magnesium and zinc. Plus erythritol and stevia leaf extract to sweeten, a natural flavouring and lecithin. The full draft ingredients list is on the label page.

It's sweetened with stevia leaf extract and a little erythritol. There's no sucralose, aspartame or acesulfame K.

About 120mg a scoop (target). The NHS puts a cup of instant coffee at about 100mg, and says filter and shop-bought coffee can contain more.

Not in the time it takes to drink a coffee. Creatine slowly turns into creatinine in liquid, faster when it's hot and acidic, but that plays out over hours and days. The draft recipe adds about 10% extra, so at least 3g should reach your mug if you drink it while it's hot. It's also why HEFT is a powder, not a can.

Probably not at normal coffee amounts, but the evidence is mixed. A 1996 study gave people about 5mg of caffeine per kg of body weight a day, roughly 350mg for a 70kg adult, and found it blunted one of creatine's effects. Later studies haven't shown a consistent problem at everyday intakes. Our creatine guide has the details and the sources.

Both are on the draft label. Hot, not boiling, water and ten seconds of stirring. For iced, dissolve it in a splash of cold water, then add cold water and ice. We'll show both working once samples exist.

Children, and anyone pregnant or breastfeeding, because of the caffeine. It contains milk. No more than two scoops a day. If you take medication or have a medical condition, check with your GP or pharmacist first.

£24.99 for a 480g pouch: 16 scoops, about £1.56 each. One a day is just under two pouches a month, about £47 at full price. The founding list gets 25% off the first pouch, which makes it £18.74.

When it passes the taste test and the first batch is made. We won't guess a date. The build log shows where we're up to, and the founding list gets in 48 hours before anyone else.

25% off your first pouch, tied to your email so there's no code to lose. First go at launch, 48 hours before everyone else. A vote on what we make next. And the build log by email. The full terms are on the terms page.

Probably not, and that's our fault. Our first sign-up form showed a thank-you message but didn't save anything. Please join again. The founding offer is the same.

There aren't any, because nobody has tried it yet. We won't write our own. Once real people have drunk it, their reviews go up, good and bad.

That isn't decided. We're choosing a UK manufacturer but haven't signed one, so we won't say where it's made until we have.

The formula is built around whey. A plant-based version might come later; we'd rather do one thing properly first.

We email you about HEFT and nothing else. It's stored in a database on Cloudflare and, once our email service is connected, in MailerLite, which sends the emails. We don't sell or share it. The privacy notice has the detail.

Because that isn't an authorised claim, and we only make authorised ones, word for word. The claims register lists what we say, what we're holding back and what we won't say.