Tuesday 23 September 2014

Beech nuts (Fagus sylvatica)

It is now September and the beech nuts are ready for picking so we thought we would revisit the beech tree and provide some photographs of these little beauties. See beech (Fagus sylvatica) for the main article about these lovely trees.

An image of beech nuts hanging on a beech tree
Beech nuts hanging on the tree

We have very many beech trees of all ages from the very young saplings to the very large mature trees. Many of the larger trees are producing copious quantities of nuts at the moment. Others are producing absolutely nothing at all.

When the time is right, the burr opens up and drops the beech nuts onto the ground. Luckily some of the the nuts drop out onto tarmac and they can be easily swept up with a dustpan and brush! Those that fall into the long grass are lost to us. Some will be eaten by animals such as deer and squirrels, others will take root and grow into small trees or rot into the ground. nb a tarpaulin or other large sheet can be laid down under the trees to collect the nuts.

Here we have a bag of freshly picked beech nuts together with their fuzzy outer burr. The burr is closed and is very difficult, if not impossible, to prise open by hand. However, once the burrs have been left in a warm room for a few hours or days, they will peel open of their own accord. After opening, the two little nuts can easily be popped out.

An image of freshly picked beech nuts with outer casing or burr
Freshly picked beech nuts with outer casing or burr


The triangular shaped nuts are covered with a leathery casing which, thankfully, are not as difficult to remove as the casings from a sweet chestnut! One side of the casing can be fairly easily prised off with a long finger nail and the nut popped out. The nuts are small and the task a bit fiddly and time consuming. Some of the skins will contain a nut (seed) and others will often be empty.


An image of beech nuts with their leathery skin
Beech nuts with their leathery skin

Beech nuts have a brown furry astringent covering which can be eaten in moderation but is best removed.

An image of beech nuts with the brown astringent skin
Beech nuts with the brown astringent skins


We soak the nuts overnight and then just slide the brown skin off. Nuts can then be eaten as they are or dried for later use.

An image of beech nuts soaked and skinned
Beech nuts soaked and skinned


Don't forget that now is the time to sow the fresh beech seeds. Sow in pots outside in a coldframe or in a seedbed and they will germinate in the spring. Seeds are not viable for very long. When the seedlings are big enough prick out into individual pots and grow on for a year before planting out into their final position. Beech trees are very very large so be prepared to find a suitable final planting site for them.

UPDATE: November 2017

We stored a quantity of beech nuts in a plastic container in the kitchen cupboard. We'd love to say we were doing a three year study on storing them. To be truthful we forgot they were there! That said, it was a useful exercise. They were stored minus their outer burr but with their leathery skin. The container was not airtight. The kitchen is rather humid. Warmish in the summer and cold in the winter.

We removed the leathery skin and the brown astringent layer underneath had turned black and dry. Around one in ten of the nuts tasted and smelt stale. The odd one or two were empty. None of them were rotten or contained any pests. The flesh of the 'good ones' tasted sweet and almost as fresh as when we picked them. We were happy to eat them. Not a scientific study. The oil may well have been rancid! Our taste buds may be poor! Interesting all the same.