Disposable or reusable piping bags?

Three kinds of piping bag are on this shelf and each is better at something. The choice is not really about waste; it is about how many colours you are working with.

Disposable plastic

Thin polyethylene, sold in rolls of fifty or a hundred, cut to length, used and thrown.

Better at: multiple colours. This is the whole argument. A cake with five colours needs five bags, and washing five reusable bags mid-project is not going to happen. Also better for anything greasy — chocolate and ganache are difficult to get fully out of fabric.

Worse at: grip when your hands are warm, and they burst. Which brings us to the claim on the box.

What “anti-burst” means

The failure mode of a cheap bag is a split along the seam under pressure, usually with stiff royal icing and usually at the worst moment.

Anti-burst bags are thicker, or have a reinforced seam, or both. It is a real difference rather than a slogan — a bag that splits wastes the icing, the bag, and whatever it landed on.

Where a manufacturer makes the claim we repeat it. If you pipe stiff icing, it is worth paying for.

Reusable fabric or silicone

Coated cloth or silicone, washed between uses.

Better at: grip — noticeably better in the hand, especially over a long session. Control, because the material is stiffer. And cost, if you use one colour repeatedly.

Worse at: cleaning. They must be washed thoroughly and dried completely inside, which takes time and space. Grease clings to fabric and can carry a smell between uses.

Turn them inside out to dry — a bag that is dry outside and damp inside is a bag going mouldy at the seam.

Parchment triangles

The professional’s disposable: a triangle of baking parchment rolled into a cone.

Better at: fine detail work and writing, because you can make a very small aperture by snipping the point. Cheap, and you make exactly as many as you need.

Worse at: volume and pressure. A parchment cone holds little and will not take a large tip or heavy pressure.

Worth learning to roll if you do a lot of writing.

Filling a bag without covering the kitchen

The technique that stops icing coming out of the top:

1. Fit the coupler and tip first, and twist the bag just above the tip to plug it. Otherwise icing runs out while you fill.
2. Stand the bag in a tall glass and fold the top third down over the rim like a cuff.
3. Fill the bag no more than halfway. This is the rule everyone breaks.
4. Unfold the cuff, gather the top, twist, and hold the twist between thumb and forefinger.

Half full is the important part. An over-filled bag forces icing out of the top the moment you squeeze, and the pressure needed at the tip is what makes a cheap bag split.

Pressure and temperature

Consistent pressure gives a consistent line, and pressure comes from the palm at the top of the bag, not from the fingers at the tip. The other hand guides the tip; it does not squeeze.

Warm hands soften buttercream, which is why long sessions get progressively messier. Work in shorter runs, and put the bag in the fridge for a few minutes if it starts going slack.

Cutting a disposable bag

Cut small and test. You can always cut more; you cannot uncut. Cut across, not at an angle, and cut high enough up that the coupler seats properly with the thread exposed — cutting too low is the commonest reason a coupler will not screw together.

Icing consistency, briefly

Most piping problems are consistency rather than equipment. Too stiff and it will not extrude and splits the bag; too loose and the shape slumps.

Rough guide: stiff for roses and anything that must hold height, medium for borders and shells, thin for writing and flooding. Adjust with tiny amounts of liquid or icing sugar — a teaspoon changes a batch more than you expect.

What to buy

For most people: a roll of anti-burst disposables plus one good reusable. The disposables handle colour work and greasy mixtures; the reusable handles the single-colour jobs where grip matters.

Buy couplers separately in a small pack if your bags did not come with them. They are the cheapest thing here that saves the most time.

Where to look

Bags, tips and coupler sets are on the piping bags and tips page. If you are starting from nothing, the sets on the complete decorating kits page include bags, tips, couplers and a turntable together. Scrapers and spatulas are under icing tools and spatulas, and turntables on their own at turntables and stands.