These beautiful and tactile steam knobs are custom designed and produced by us, using the same supplier for the wood as our portafilter handles. We also now have two premium resin knobs that are available (light or dark with a sparkle finish)

The fitting of these knobs is the same as the standard plastic knob - they simply push on, and are retained by a sprung D style mount.  As such they can be pushed on, and pulled off when/if required - just like the original knob.  There is nothing permanently fixed, and no unsightly grub screws to work loose and need retightening or other fixings to worry about.

Specification:

• Diameter:  approx 34mm tapering to 32mm (as per the original plastic knob)
• Length: approx 35mm  (as per the original plastic knob)
• Material:  Wooden (see options for individual woods),plastic mount and sprung steel spring.  Resin knobs are resin.
• Supplied as shown, with spring fitted.

As the wooden knobs are a natural product, the graining and colour of the wood can differ slightly from that shown.  Hence it is possible to have variances in the wood graining and staining. Also whilst we try hard to protect the wood from any damage, as they are commercially manufactured wooden handles they may occasionally have small imperfections - though this obviously doesn't impact performance.

If you order both a wooden handled portafilter AND a wooden handled steam knob of the same type of wood, within the same order - we will make best endeavours to match the grain and colouration of the handle and knob as well as possible at the time and given the stock available. 

We now have walnut, white ash, wenge, oak and olive knobs (as well as our new dark and light resin ones) - but if you would like us to have other types of wood as well, then please drop an email to info@shadesofcoffee.co.uk and let us know your preference.  If enough people want them, then we'll get other types.

Note that due to manufacturing tolerances, there can be a rotational asymmetry of +/- 1mm with these knobs - though clearance within the case hole is typically much larger than this.

OLIVE:  These are split into two types of Olive; either "Olive" (where we select knobs that have some reasonable character and visible grain) and "Boring Olive" (which are olive wood, but have very little or no dark visible grain and are much plainer than the regular Olive.  The gallery photos show some examples of what these could look like.).   All Olive products are obviously made from a natural substance and the grain and character of the olive products can vary quite considerably.

INSTALLATION:  As with the standard plastic steam knob, our wooden steam knobs use a sprung D shaft fitment.  It is important that the knob is fitted in the correct orientation with respect to the flat and curved sides of the shaft - and whilst it is slightly more obvious with our knob than with the standard one, they both fit in the same way:  the FLAT part of the steam valve shaft should be fitted against the flat plastic part of the socket; and the flat metal spring within the knob should be fitted against the CURVED side of the shaft. Fitting requires very firm pressure, to push the knob on initially. ALWAYS check that the flat metal spring is within the steam knob (our wooden one or the standard Gaggia one) before fitting.

Note that the Gaggia Classic RI9403 has a slightly different steam knob, that externally looks similar to this - though it includes plastic end-stops within the knob.  This wooden steam knob doesn't have the same end stops, but will fit the RI9403 plastic steam valve shaft, though it is usually necessary to remove the metal spring from within the wooden steam knob to do so.

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