I got through last Wednesday’s pickleball coaching session without too much pain. I was very careful of how I demonstrated certain drills and techniques, then mostly stood to the side and observed the students. It was a 90-minute lesson and I think it went well.

Later in the afternoon, DHL delivered again. Yeah, I bought another Japanese kitchen knife. I know, how many do you need, right? Well, it’s like cowboy boots – just one more is always the answer. I wanted to have a longer slicing knife to use for brisket and tri-tip off the smoker. A Japanese style called a sujihiki was what I wanted. Sujihikis are usually long and only about one and a half inches (38mm) tall at the heel of the blade. They are ideal for cutting boneless meat into thin strips.

I had sent an e-mail with questions to Japanese Chef Knives and got a prompt rely from the boss there, Koki Iwahara. I placed the order for a JCK Natures Blue Moon kuritsuki/sujihiki. These knives are hand made in Sanjo, Niigata Prefecture, Japan. Japan had a number of well-known blademaking cities, each with its own take on knife making. Sanjo historically was a place where blacksmiths made mostly farming tools. That changed and today there are reportedly around 100 knife factories in Niigata Prefecture. Factory in this sense doesn’t mean what we might think of a factory.

Many knife makers operate out of a small dwelling – maybe the size of an American two-car garage with one to three workers. This is typical in Sanjo where all of the knife making process, other than the handle, takes place under one roof. In other areas, different steps in the process are contracted out to various specialists.

Once again, Koki and DHL came through. The knife left Tokyo on Monday and I had it Wednesday afternoon. It’s a 9.5-inch (240mm) sujihiki with a “K” type reverse tanto tip.

I ordered a saya (wood sheath) to go with it. I oiled the chestnut handle and magnolia saya with camellia oil and it darkened nicely.

The extremely sharp blade is made from Hitachi Aogami #2 – also called blue steel #2 – a high carbon steel that’s not corrosion resistant. The blade is san-mai, that is, it’s three layers. The core of Aogami #2 is clad with soft stainless steel on each side, like a sandwich. This gives the advantage of the hard blue steel edge and the toughness of the soft cladding – otherwise the blade would be too brittle and fragile.

Wednesday evening, Donna cooked seared ahi (yellowfin tuna) and I put the sujihiki to test. It sliced the ahi cleanly with one pulling stroke into thin serving slices. She served it over Japanese fried rice with grilled bok choy. Delicious!

On Friday, Donna made an announcement on social media that she’s been considering for awhile. She officially announced her retirement. No more articles, newsletters or books to write, no more interviews with magazines and no more blogging. She’s selling her Internet domain name and completely leaving the organizing business. Her days are already full with tennis, pickleball, bicycling and sometimes just relaxing with a book.

I had another delivery and set about doing some regular RV maintenance work on Friday. I had ordered replacement filter cartridges from the RV Water Filter Store for our dual canister water filtration system. I replace the cartridges on a regular schedule – the sediment filter gets changed every three months while the carbon block filter gets changed every six months.

The water here in the desert is very hard with lots of mineral content. Additionally, in December, they replaced the water meters in the park, which undoubtedly released sediment into the pipes.

The 5-micron sediment filter really showed a lot of trapped debris and rust. I like the 5-micron element as it it’s fine enough, but still allows good flow. A one-micron filter would trap smaller particles, but it also impedes flow.

The weather has been delightful – as forecast, the highs have been in the mid to upper 70s with overnight lows around 50. We’ll have a few more nice days ahead, but clouds and a chance of rain are in the forecast by the end of the week.