What Hard Munchables Actually Are — and Why Your Baby Should Use One
This post explains what hard munchables are and why giving your baby something genuinely firm to chew on supports their development in ways that softer options cannot.
What Is a Hard Munchable?
As defined by the NHS, a hard munchable is a food that is hard, solid, and firm, while remaining safe for a baby to explore. Unlike dissolvable snacks that soften quickly in the mouth, hard munchables stay firm for much longer, allowing babies to mouth, hold, and investigate harder textures at their own pace.
Hard munchables are not primarily designed to be eaten. Instead, they give babies the opportunity to explore the feel of firm foods, practise bringing food to their mouth, and begin developing the movements involved in handling harder textured foods. Common examples include celery sticks, mango pits, and other appropriately prepared firm foods.
Bickiepegs Teething Biscuits are also a hard munchable. Like other foods in this category, they provide a safe, firm texture for babies to explore. Because they remain firm under gum pressure for an extended period, they also encourage repeated chewing movements that actively engage the jaw and chewing muscles. This repeated mechanical loading helps support normal orofacial development while babies practise the skills they will later use for eating. They're not a replacement for a varied diet, but they are a simple way to support both oral exploration and healthy jaw development during this important stage of your baby's feeding journey.
→ We cover what chewing does before teeth arrive in a different blog: Why Chew on Hard Foods Before Teeth Arrive.
Why Does Firmness of Hard Munchable Matter?
The defining feature of a hard munchable isn't simply that it's hard—it's that it provides resistance. You may also hear people talking about resistive foods, which are used interchangeably with hard munchables. They both are hard, firm and resistive.
When a baby presses their gums and teeth against something firm, the food pushes back. This resistance encourages repeated chewing movements rather than simply dissolving away. The jaw grows and develops in response to being used. When jaw muscles contract against something firm, two things happen: the muscles grow stronger and more coordinated, and the physical forces generated stimulate the jawbone to grow. This is one of the primary ways the craniofacial system (the bones and muscles of the face and jaw) adapts during infancy.
A 2024 study published in Proceedings of the Royal Society B found that the forces produced by chewing increase dramatically between birth and four years, and that this mechanical loading is a key driver of how the jaw bones and muscles develop (Liang et al., 2024). A separate pilot study found a direct link between early diet texture and jaw measurements in children aged three to five — those who had eaten more varied, harder-textured foods showed larger jaw measurements (Boo Gordillo & Marqués Martínez, 2024).
In summary: the jaw needs to be pushed against something firm in order to develop. Without that challenge, development is less complete.
Why Is Jaw Development Relevant for Babies Specifically?
The first twelve months are when the jaw is growing fastest and when the muscles responsible for chewing are forming their first coordination patterns. A scientific study tracked jaw muscle development in four children from 12 to 48 months, using a technique called EMG, which measures electrical activity in the muscles using small sensors. They found that the basic chewing pattern is already established by 12 months (Green et al., 1997). That means what happens before twelve months sets the foundation.
Research also suggests there are sensitive periods in the first year when new textures are most readily and naturally accepted. The Royal Children's Hospital Melbourne notes that babies can develop oral motor skills — the coordinated movements of the mouth, jaw, tongue, and lips needed for eating — through gradual, progressive texture exposure from around 6 months. The earlier resistive chewing is introduced, the more naturally it tends to be accepted.
The challenge is that modern feeding makes it very easy to skip this stimulus entirely. Pouches, smooth purees, and dissolvable snacks are convenient and useful — but they require almost no jaw engagement. A baby raised primarily on these textures misses much of the mechanical stimulus their jaw is designed to receive.
When Should Babies Start On Hard Munchables?
From around 5 to 6 months — the same time many babies begin teething and parents start introducing solid foods. Teeth are not required. Baby gums generate significant pressure, and the jaw development process is active well before any tooth appears. The NHS advises that firm foods such as pieces of raw vegetable, held by a parent, can be introduced from around six months to encourage early chewing. The earlier resistive chewing is introduced, the more of this developmental window it captures.
→ Ready to start? We've also written a step-by-step introduction guide: How to Introduce Hard Munchables When Your Baby Has No Teeth Yet.
How Bickiepegs Can Help
Bickiepegs teething biscuits were specifically designed to function as hard munchable. They are firm enough that a baby's gums and jaw muscles have to work — not something that dissolves in seconds. They are not the same as your melty teething wafers. They are shaped to be held by a young baby's hand. And they do not contain any nonsense - no added sugar, no added salt, no artificial flavourings and preservatives.
Offering a Bickiepegs biscuit once or twice daily from around 6 months gives your baby's jaw the resistive stimulus it is designed to receive — in a safe, manageable, supervised form that fits easily into the day.
→ Not sure what to look for in a product? We wrote a guide on How to Choose a Hard Munchable — which walks through the criteria and quick safety tests.
