Refurbish or buy new – what pays off?

Four routes, not two

Anyone facing an ageing keg fleet usually thinks in two options: repair or replace. That leaves out two routes that are better, depending on the situation.

These four routes cannot be compared on unit price, only on cost per keg and year. Only then does it become visible that a keg costing €83 and running for thirty years costs less than three euros a year in depreciation.

Why refurbishment almost always wins

Not on principle, but for a simple structural reason.

The most expensive item in a keg fleet is the vessel. It accounts for the lion's share of the purchase price, and it is the component that lasts longest – a stainless steel pressure vessel with no moving parts.

That is not a sales argument, it is arithmetic. A keg that is refurbished costs the refurbishment, spread over the years until the next one. A keg that is replaced costs the full new price, spread over the full service life – and in doing so throws away a vessel that would have run for decades more.

On top of that comes a point that tells when a keg is lost: a refurbished keg is cheaper to replace in the event of a loss than a new one. At a three per cent annual loss rate, that makes a noticeable difference across a fleet.

When buying new is right after all

There are four cases. In all four it would be wrong to advise refurbishment.

The fourth case is the only one in which the decision really hangs on the individual keg – and that is why incoming inspection is the point at which the calculation is decided. If the neck and the neck thread are sound, almost everything else is a question of labour.

There is a fifth case, named less often: if the container mix has shifted and 50-litre kegs are to become 30s, neither refurbishment nor buying new is the first answer, but the capacity change or a neck conversion. A keg that cannot be tapped in the target market is worthless there – even though the vessel is faultless.

The strongest objection to refurbishment

And it is a fair one. You should know it before somebody else raises it.

Anyone selling beer in reused kegs has statistically more complaints than someone using brand-new kegs. That is not an invention of the new-keg sellers, it is described in operational studies, and it has an obvious reason: a new keg has no past. No old valve rubber, no deposits, no foreign body in the sealing face, no spring that has already been overstretched.

The objection, however, is not directed against refurbishment but against bad refurbishment – and the two are regularly confused. In many operations “reused” simply means: washed and refilled. That is not refurbishment.

Honesty requires this: we are refurbishers ourselves. So put these four questions to us as well.

The calculation, with your figures

Four routes, one cost figure. All assumptions disclosed.

We have built a calculator that sets the routes side by side: cost per keg and year, cost per fill, break-even between renting and buying, capital tied up. All starting values are documented market prices and can be overwritten.

With the default values – 500 kegs, five cycles a year, three per cent losses, thirty years of service life, six per cent imputed interest – this ranking results:

Before anyone writes off renting: this figure is an annual value for year-round use over many years. That is precisely not what renting is meant for. Anyone covering a seasonal peak over four months pays for four months – their own kegs cost twelve. And the rental rate contains delivery, pickup, cleaning and maintenance, which in the other two columns remain your job.

The most robust statement in the table is therefore not the ranking but the gap between the first two rows: anyone who already owns kegs pays less than half for keeping them than replacing them costs.

To the calculator – with your own figures

And the environmental calculation?

The data here is better than you would think – and it says something other than the brochures claim.

The only independent, peer-reviewed life cycle assessment comparing steel and plastic kegs comes to a clear result: the climate advantage of the steel keg takes effect from 38 uses. That is the very bottom end of any service life range – a keg that does not reach 38 is an exception.

The same study also names a limit that appears in no association material: from around 245 kilometres of transport distance the advantage tips in favour of the lighter single-use keg. Anyone exporting over long distances should know that instead of passing over it.

A recent Japanese case study without third-party funding has worked through the switch to draught beer: moving half of sales to kegs cut the CO₂ footprint by 44 per cent and at the same time cut costs by eleven per cent.

The decision in four sentences

• You have kegs, and the neck and neck thread are soundRefurbish. The calculation comes out in favour of keeping them in practically every constellation, and the manufacturer requires the servicing anyway.
• You are building a fleet from scratchBuy – and check whether reconditioned is enough. Technically there is nothing between new and reconditioned; in price there is around twenty per cent.
• Your demand fluctuates or the capital is needed elsewhereRent – for the fluctuating part. Not for the base demand.
• Your container mix has shiftedNeither one. First check the capacity change and the neck conversion – they keep existing vessels in use instead of retiring them.

Most operations need a mixture: their own, regularly refurbished base stock and a rented peak. Anyone looking for only one answer has framed the question too narrowly.