Using the Robusta market as a cheaper alternative to traditional OTM (out-of-the-money) calls in KC (Arabica coffee futures) in front of the Brazilian winter can be a strategic approach, but it depends on several factors.

The Brazilian winter, which typically occurs from June to September, can impact coffee production, particularly Arabica coffee. Arabica coffee is more susceptible to frost damage during this period, leading to potential supply disruptions and price increases. As a result, purchasing OTM calls on KC contracts can be an effective way to hedge against price volatility and benefit from potential price spikes.

However, using the Robusta market as an alternative may not provide the same level of correlation and effectiveness. Robusta coffee, while often cheaper than Arabica, has different characteristics and is typically used in different blends and markets. It is less affected by the Brazilian winter and frost risks.

If your objective kiritsuke knives is to hedge against the price volatility of Arabica coffee specifically during the Brazilian winter, using OTM calls on KC contracts would be a more direct and appropriate strategy. Assessing the market conditions, consulting with experts, and analyzing historical price patterns can help determine the most suitable approach for your specific circumstances.