Autumn is the last window before your knife goes into winter hibernation — or, conversely, before you head out on back-to-back excursions in cold, wet weather. In either case, it’s the perfect time to perform a full check-up rather than discovering a problem mid-season. This checklist goes beyond routine cleaning to cover what specifically matters before winter arrives.
Why autumn is a high-risk period for an outdoor knife
Two factors combine during this season: ambient humidity rises (rain, fog, morning dew) and the first frosts appear, with freeze/thaw cycles that affect materials differently than dry summer use. A knife that handled the summer well can develop nascent corrosion spots if it isn't checked before the dampness settles in for the long haul.
The 6-point checklist
1. Full blade inspection
Examine the edge under raking light to spot micro-chips and signs of oxidation, especially in the least visible areas (the heel of the blade, near the pivot for a folding knife). The Nitrox® and MOX® steels in the TB-Outdoor range are highly corrosion-resistant, but no steel is completely immune to prolonged stagnant moisture.
2. Mechanism check (folding knives)
For a C.A.C.®, check for any side-to-side play in the open position and ensure smooth opening/closing. A mechanism that starts to catch before winter won't improve in the cold — mechanical tolerances tighten in low temperatures.
3. Preventive lubrication
Apply a drop of oil to the rotation axis of a folding knife before the cold thickens existing oil residue. The C.A.C.® maintenance kit (€21) contains the necessary oil and adjustment tool.
4. Checking wear parts
This is a great time to check the condition of springs, screws, and thumb studs before the knife heads out for extended use in harsh conditions. TB-Outdoor offers replacement kits specifically for the C.A.C.®:
- C.A.C.® spring kit (€2.10) — restores the opening mechanism in case of wear.
- C.A.C.® screw kit (€3.70) — maintenance for handle scales.
- C.A.C.® thumb stud kit (€3.30) — replacement stud for one-handed opening.
- C.A.C.® pivot screw kit (€5.40) — wear parts for the pivot.
5. Protection before long-term storage
For a knife that will be resting for part of the winter: clean thoroughly, dry completely, apply a thin coat of oil to the metal parts, and store in a dry case rather than a damp drawer. For a Bivouac®, the replacement pouch (€10) effectively protects the blade in the closed position.
6. Checking emergency accessories
Glass breaker, strap cutter: these features are only used in critical situations, which makes them easy to forget during routine maintenance. A quick visual check before winter, a season when driving conditions deteriorate, is never time wasted.
Special case: autumn outings in wet conditions
For those who continue to head out actively (hunting, hiking, bushcraft) rather than putting their knife away, the frequency of maintenance must increase accordingly. A knife exposed to rain and mud regularly deserves a check-up after each outing rather than a one-off checklist — see our full field maintenance protocol for intensive use.
Frequently asked questions
Should I oil a knife before storing it for the winter?
Yes, always. A dry but unprotected blade remains exposed to the ambient humidity of an unheated storage room.
Does cold damage Nitrox® or MOX® steel?
No, these steels handle low temperatures well. The risk comes more from repeated freeze/thaw cycles on a poorly lubricated mechanism than from the cold itself.
How often should I go through this checklist during autumn/winter?
Once at the start of the season is enough for occasional use. For regular use in wet conditions, a monthly check is reasonable.
