Lactose-free and vegan ice cream

How much lactose most people can tolerate, why lactose-free ice cream is softer and what coconut, cashew, oats or soya bring to the table.

Ice cream without milk or without lactose has long stopped being just a substitute. Display counters have more and more sorbets, coconut and nut ice creams, and at home you can make creamy ice cream from plant-based ingredients too. This article explains how lactose-free and vegan ice cream differ and what to watch out for with each.

Lactose-free and vegan are not the same

  • Lactose-free ice cream is still made from milk and cream. The lactose (milk sugar) in it has been broken down by the enzyme lactase, or lactose-free dairy products are used. It contains milk proteins, so it is not suitable for people with a milk allergy.
  • Vegan ice cream contains nothing of animal origin — no milk, no eggs. Its base is a plant “milk”, nuts, coconut or fruit (sorbet).

Lactose intolerance and a milk protein allergy are two different things. With intolerance, it’s about how much lactose the body can process. With an allergy, the immune system reacts to milk proteins and milk has to be avoided completely.

How much lactose you can tolerate

In 2010 the European Food Safety Authority (EFSA) stated that most people with lactose malabsorption can tolerate up to 12 g of lactose in a single dose with no symptoms or only mild discomfort. Some people, however, react to less than 6 g. There is no universal threshold — everyone has to find their own.

Did you know?

According to EFSA (2010), most people with lactose malabsorption tolerate up to 12 g of lactose at once. More sensitive people may have symptoms below 6 g.

How much lactose a scoop of ice cream contains depends on the recipe — above all on the proportion of milk and milk powder. If you have symptoms, the safest choice is lactose-free or vegan ice cream. If you have diagnosed intolerance, follow the advice of your doctor or dietitian.

The exact threshold at which a product may be labelled “lactose-free” is quoted differently in Slovakia and Czechia and we have not verified it. Rely on the label on the packaging.

Why lactose-free ice cream is softer and sweeter

Lactase breaks lactose down into two simple sugars — glucose and galactose. This has two consequences:

  1. Sweetness. Simple sugars are sweeter than lactose, so lactose-free milk tastes sweeter.
  2. Softness. According to the textbook by Douglas Goff (University of Guelph), simple sugars lower the freezing point more than disaccharides. Ice cream made from lactose-free milk can therefore be softer in the freezer.

We have not verified exact figures for lactose-free ice cream, but the principle is the same as when replacing sugar with dextrose.

Tip

When making ice cream from lactose-free milk and cream, use a little less sugar. The mix will still be sweet enough and the ice cream won’t be too soft.

Vegan ice cream: plant-based bases

Plant ingredients behave differently in ice cream. As a rough guide:

BaseWhat it bringsWhat to bear in mind
Coconut milk and creamlots of fat, creaminesspronounced coconut flavour
Cashews and other nutsfat and protein, full flavourallergen (nuts)
Soya milkprotein, a more neutral flavourallergen (soya)
Oat milkstarch, gentle sweetnesslittle fat, the ice cream is icier
Fruit (sorbet)flavour, its own sugarsno fat, sugar makes up most of the solids

Fat in ice cream doesn’t freeze and makes it creamy. Low-fat plant drinks (oat, rice) make icier ice cream. Combining them with coconut cream, nut butter or a starch thickener helps.

Warning

Soya and nuts are among the 14 allergens that must always be declared under Regulation (EU) No 1169/2011. Vegan ice cream is not automatically “allergen-free”.

What the law says

Slovak Decree No. 82/2018 and Czech Decree No. 397/2016 both reserve the names “cream” and “milk” ice cream for products made from milk. In the shops, plant-based ice cream therefore falls under ice cream with vegetable fat (at least 5 % vegetable fat) or among water ices, which also include sorbets.

In practice: if you see “cream” (smotanová / smetanová) on a label in the display counter, it isn’t vegan ice cream. For vegan ice cream, ask directly — and ask whether it is served with a separate scoop.

Is vegan ice cream healthier?

Not automatically. Vegan ice cream often contains about as much sugar as dairy ice cream, and with a coconut base a lot of fat too. What matters is the composition of the particular recipe, not the label. Vegan ice cream is an excellent choice for people who don’t eat animal products or can’t have milk, but it’s no diet miracle.

Summary

  • Lactose-free ice cream contains milk proteins and is not suitable for people with a milk allergy.
  • Most people with lactose malabsorption tolerate up to 12 g of lactose at once (EFSA 2010); more sensitive people less.
  • A lactose-free mix is sweeter and the ice cream softer — you can use less sugar.
  • Vegan ice cream needs enough fat, otherwise it’s icy. Bear in mind the allergens in soya and nuts.

Sources

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