Zero sugar is a flavour problem

A zero sugar energy drink is easy to make and hard to make well. Removing the sugar takes an afternoon. Making the drink taste like anything afterwards is the rest of the year, and it is the part that decides whether you finish the can.

Removing sugar from a drink takes an afternoon. Making the drink taste like anything afterwards is the rest of the year. That is the part nobody puts on the front of the can, and it is the part that decides whether you finish it.

This is about one half of what we make. The Guilt Free Pleasures range is built without sugar; the Sweet Sins range is built with it and has an easier job. What follows is the harder one.

What sugar was hiding

Sugar does two jobs in a soft drink. It makes it sweet, which everyone knows, and it gives the liquid body, which almost nobody thinks about until it is gone. Take it out and the drink goes thin. The usual fix is to pour in a sweetener until the sweetness is back, which restores the first job and not the second. You get a drink that tastes sweet on contact and empty a second later, then leaves a film behind that tells you what it was made of.

Building for the finish instead

We tune every zero sugar flavour from the last second backwards. The question is never how sweet the first sip is, it is what your mouth feels like four seconds after you swallow. A can that finishes dry can be drunk all the way down. A can that finishes coated gets left half full on a desk, which is the real verdict, whatever the review said.

In practice that means less sweetener than you would expect, a sharper acid line, and fruit characters that carry the flavour on their own. Citrus Havoc is the clearest example: there is very little to it besides peel and acid, and that is deliberate.

How to test it yourself

Do not judge a zero sugar can on the first sip, because the first sip flatters everything. Drink a third of it, put it down for ten minutes, and pick it up again. The cans that were covering for something taste noticeably worse warm. The rest taste like what they claimed to be.

The whole range, sugar and no sugar, is in the shop.

What a zero sugar energy drink has to replace

Two things, and only one of them is sweetness. The other is body, and it is the one that gets forgotten. A sweetener restores the taste and not the weight, which is why so many cans feel thin in the mouth and then hang around afterwards.

The sweeteners themselves are not the villain here. Sucralose and acesulfame K are both assessed and approved for use in the European Union. The problem is how much of them a recipe leans on when nothing else is doing any work.

The four second test

Swallow, then count to four. That is the window where a badly built can gives itself away: a coating on the tongue, a sweetness that will not leave, a faint bitterness at the back. A can that finishes clean can be drunk all the way down. A can that finishes coated gets left half full on a desk, which is the real review.

How to taste one properly

Do not judge a can on the first sip, because the first sip flatters everything. Drink a third, put it down for ten minutes, and pick it up again warm. Anything that was covering for a thin recipe tastes noticeably worse. The rest taste like what they claimed to be.

Where the sugar still is

Half the range. Sweet Sins are made with sugar and do not pretend otherwise, and they have an easier job precisely because sugar does both of those things at once. Neither half is the sensible choice; they are two different drinks, and the sugar filter in the shop is one click.

If you are picking a first can rather than reading about recipes, which energy drink flavour to start with is the shorter page.